From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S263244AbTJONul (ORCPT ); Wed, 15 Oct 2003 09:50:41 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S263248AbTJONul (ORCPT ); Wed, 15 Oct 2003 09:50:41 -0400 Received: from thebsh.namesys.com ([212.16.7.65]:1182 "HELO thebsh.namesys.com") by vger.kernel.org with SMTP id S263244AbTJONuk (ORCPT ); Wed, 15 Oct 2003 09:50:40 -0400 From: Nikita Danilov MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Message-ID: <16269.20654.201680.390284@laputa.namesys.com> Date: Wed, 15 Oct 2003 17:50:38 +0400 To: Erik Mouw Cc: Josh Litherland , linux-kernel@vger.kernel.org Subject: Re: Transparent compression in the FS In-Reply-To: <20031015133305.GF24799@bitwizard.nl> References: <1066163449.4286.4.camel@Borogove> <20031015133305.GF24799@bitwizard.nl> X-Mailer: ed | telnet under Fuzzball OS, emulated on Emacs 21.5 (beta14) "cassava" XEmacs Lucid Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Erik Mouw writes: > On Tue, Oct 14, 2003 at 04:30:50PM -0400, Josh Litherland wrote: > > Are there any filesystems which implement the transparent compression > > attribute ? (chattr +c) > > The NTFS driver supports compressed files. Because it doesn't have > proper write support, I don't think it will do anything useful with > chattr +c. > > Nowadays disks are so incredibly cheap, that transparent compression > support is not realy worth it anymore (IMHO). But disk bandwidth is so incredibly expensive that compression becoming more and more useful: on compressed file system bandwidth of user-data transfers can be larger than raw disk bandwidth. It is the same situation as with allocation of disk space for files: disks are cheap, but storing several files in the same block becomes more advantageous over time. > > > Erik > Nikita.